Tetragon Partners UK LLP
UK short positions the FCA published under this name: 18 companies and 378 disclosures between 1 Nov 2012 and 30 Apr 2025. Each figure is that position as a percentage of the company's issued share capital, not a money value, and percentages are not comparable or summable across companies.
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Positions open when the register closed
No position was still open in the register's final snapshot of 10 Jul 2026: every chain below had already fallen back below the 0.5% publication threshold.
Full disclosure history
Every disclosure the archive holds, grouped by company and ordered oldest first within each chain. A chain begins when the position first crossed 0.5% and ends either at the freeze or at the last disclosure before it fell back below the threshold.
PETROFAC LTD
closed 30 Apr 202536 disclosures · peak 3.30% · first 28 Nov 2023 · last 30 Apr 2025
28 Nov 2023 0.72% · (12 further disclosures) · 6 Jan 2025 2.33% · 7 Jan 2025 2.42% · 9 Jan 2025 2.59% · 10 Jan 2025 2.68% · 13 Jan 2025 2.72% · 14 Jan 2025 2.87% · 15 Jan 2025 3.01% · 16 Jan 2025 3.14% · 17 Jan 2025 3.20% · 20 Jan 2025 3.30% · 5 Feb 2025 3.27% · 4 Apr 2025 3.18% · 7 Apr 2025 3.05% · 9 Apr 2025 2.92% · 14 Apr 2025 2.85% · 15 Apr 2025 2.77% · 22 Apr 2025 2.64% · 23 Apr 2025 2.47% · 24 Apr 2025 2.26% · 25 Apr 2025 2.12% · 28 Apr 2025 2.05% · 29 Apr 2025 1.63% · 30 Apr 2025 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
PRIMARY HEALTH PROPERTIES PLC
closed 1 Feb 202330 disclosures · peak 2.13% · first 27 Jul 2016 · last 1 Feb 2023
27 Jul 2016 0.50% · (6 further disclosures) · 19 Apr 2018 0.77% · 26 Apr 2018 0.84% · 9 May 2018 0.91% · 25 Jun 2018 1.05% · 26 Jun 2018 1.14% · 20 Aug 2018 1.34% · 3 Sep 2018 1.43% · 10 Sep 2018 1.56% · 12 Sep 2018 1.61% · 19 Sep 2018 1.72% · 18 Oct 2018 1.87% · 24 Oct 2018 1.96% · 31 Oct 2018 2.03% · 5 Nov 2018 2.13% · 21 Dec 2018 0.01% · 26 Aug 2021 0.56% · 28 Sep 2021 0.49% · 13 Oct 2021 0.51% · 14 Jan 2022 0.48% · 16 Mar 2022 0.50% · 10 Aug 2022 0.60% · 1 Sep 2022 0.59% · 1 Feb 2023 0.48%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
CINEWORLD GROUP PLC
closed 26 Apr 202216 disclosures · peak 1.35% · first 2 Mar 2021 · last 26 Apr 2022
2 Mar 2021 0.54% · 3 Mar 2021 0.65% · 5 Mar 2021 0.84% · 25 Mar 2021 1.06% · 26 Mar 2021 1.16% · 29 Mar 2021 1.23% · 5 Oct 2021 1.35% · 28 Oct 2021 1.28% · 29 Oct 2021 1.06% · 2 Nov 2021 0.99% · 4 Nov 2021 0.89% · 9 Nov 2021 0.67% · 10 Nov 2021 0.58% · 11 Nov 2021 0.40% · 24 Jan 2022 0.66% · 26 Apr 2022 0.74%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Petropavlovsk PLC
closed 18 Mar 202276 disclosures · peak 5.50% · first 17 Jul 2013 · last 18 Mar 2022
17 Jul 2013 0.50% · (52 further disclosures) · 18 Jun 2020 5.20% · 30 Jun 2020 5.18% · 29 Jul 2020 5.50% · 4 Aug 2020 4.92% · 6 Aug 2020 4.64% · 16 Oct 2020 4.59% · 21 Oct 2020 4.61% · 5 Nov 2020 4.57% · 4 Jan 2021 4.61% · 29 Apr 2021 4.76% · 19 Jan 2022 4.62% · 24 Jan 2022 4.59% · 16 Feb 2022 4.48% · 18 Feb 2022 4.38% · 22 Feb 2022 4.20% · 23 Feb 2022 4.17% · 24 Feb 2022 4.07% · 2 Mar 2022 3.91% · 3 Mar 2022 3.28% · 4 Mar 2022 2.26% · 16 Mar 2022 1.44% · 17 Mar 2022 0.98% · 18 Mar 2022 0.19%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
J SAINSBURY PLC
closed 29 Jul 202128 disclosures · peak 0.81% · first 21 May 2018 · last 29 Jul 2021
21 May 2018 0.50% · (4 further disclosures) · 4 Jul 2018 0.81% · 21 Sep 2018 0.78% · 28 Sep 2018 0.80% · 2 Oct 2018 0.79% · 3 Oct 2018 0.81% · 5 Oct 2018 0.78% · 17 Oct 2018 0.69% · 18 Oct 2018 0.70% · 8 Nov 2018 0.80% · 12 Nov 2018 0.78% · 28 Nov 2018 0.80% · 29 Nov 2018 0.79% · 10 Dec 2018 0.69% · 12 Dec 2018 0.57% · 17 Dec 2018 0.49% · 21 Dec 2018 0.50% · 27 Dec 2018 0.44% · 9 Jan 2019 0.52% · 31 Jan 2019 0.60% · 12 Feb 2019 0.59% · 20 Feb 2019 0.30% · 9 Jul 2021 0.51% · 29 Jul 2021 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Hurricane Energy
closed 11 Mar 202152 disclosures · peak 1.40% · first 14 Jun 2018 · last 11 Mar 2021
14 Jun 2018 0.51% · (28 further disclosures) · 28 Nov 2019 0.51% · 2 Dec 2019 0.46% · 13 Mar 2020 0.53% · 24 Mar 2020 0.48% · 15 Apr 2020 0.53% · 21 Apr 2020 0.60% · 8 Jun 2020 0.79% · 9 Jun 2020 0.89% · 10 Jun 2020 0.94% · 11 Jun 2020 1.02% · 12 Jun 2020 1.12% · 18 Jun 2020 1.23% · 14 Jul 2020 1.31% · 24 Aug 2020 1.40% · 11 Sep 2020 1.32% · 14 Sep 2020 1.19% · 27 Jan 2021 1.09% · 28 Jan 2021 0.91% · 29 Jan 2021 0.81% · 1 Feb 2021 0.70% · 5 Feb 2021 0.69% · 10 Mar 2021 0.53% · 11 Mar 2021 0.43%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
FUTURE PLC
closed 15 Jan 20212 disclosures · peak 0.56% · first 7 Jan 2021 · last 15 Jan 2021
7 Jan 2021 0.56% · 15 Jan 2021 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
SIRIUS MINERALS PLC
closed 9 Jan 202030 disclosures · peak 1.00% · first 25 Nov 2016 · last 9 Jan 2020
25 Nov 2016 0.77% · (6 further disclosures) · 31 May 2017 0.53% · 5 Jun 2017 0.61% · 16 Jun 2017 0.57% · 11 Apr 2018 0.60% · 13 Apr 2018 0.71% · 23 Apr 2018 0.00% · 30 Apr 2019 0.53% · 3 May 2019 0.60% · 23 May 2019 0.32% · 7 Jun 2019 0.52% · 19 Jun 2019 0.49% · 10 Sep 2019 0.52% · 17 Sep 2019 0.68% · 18 Sep 2019 0.72% · 26 Sep 2019 0.57% · 27 Sep 2019 0.29% · 1 Nov 2019 0.53% · 4 Nov 2019 0.69% · 5 Nov 2019 0.75% · 6 Nov 2019 0.88% · 7 Nov 2019 1.00% · 8 Jan 2020 0.75% · 9 Jan 2020 0.36%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Premier Oil PLC
closed 6 Sep 201840 disclosures · peak 4.85% · first 8 Mar 2017 · last 6 Sep 2018
8 Mar 2017 0.52% · (16 further disclosures) · 28 Sep 2017 3.30% · 27 Oct 2017 3.26% · 31 Oct 2017 3.48% · 6 Nov 2017 3.55% · 8 Nov 2017 3.60% · 21 Nov 2017 3.77% · 30 Nov 2017 3.81% · 1 Dec 2017 3.93% · 6 Dec 2017 4.03% · 21 Dec 2017 4.18% · 4 Jan 2018 4.44% · 5 Jan 2018 4.44% · 8 Jan 2018 4.67% · 9 Jan 2018 4.48% · 10 Jan 2018 4.82% · 12 Jan 2018 4.85% · 15 Jan 2018 4.37% · 19 Jan 2018 0.03% · 14 Jun 2018 0.59% · 29 Jun 2018 0.61% · 7 Aug 2018 0.72% · 20 Aug 2018 0.60% · 6 Sep 2018 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Hansteen Holdings PLC
closed 10 Jul 201731 disclosures · peak 2.03% · first 25 Mar 2015 · last 10 Jul 2017
25 Mar 2015 0.66% · (7 further disclosures) · 9 Feb 2016 1.79% · 4 Mar 2016 1.85% · 15 Mar 2016 1.75% · 22 Mar 2016 1.68% · 6 May 2016 1.73% · 24 May 2016 1.80% · 14 Jun 2016 1.75% · 24 Jun 2016 1.67% · 6 Jul 2016 1.59% · 27 Jul 2016 1.62% · 28 Jul 2016 1.62% · 6 Sep 2016 1.82% · 6 Oct 2016 1.78% · 11 Oct 2016 1.69% · 31 Oct 2016 1.55% · 14 Nov 2016 1.60% · 9 Dec 2016 1.74% · 8 Feb 2017 1.83% · 20 Feb 2017 1.94% · 21 Mar 2017 1.56% · 12 Apr 2017 1.63% · 10 May 2017 1.73% · 10 Jul 2017 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
JKX Oil & Gas PLC
closed 7 Feb 201721 disclosures · peak 1.60% · first 13 Feb 2013 · last 7 Feb 2017
13 Feb 2013 0.50% · 21 Feb 2013 0.60% · 30 Oct 2013 0.73% · 4 Nov 2013 0.80% · 7 Nov 2013 0.90% · 2 Dec 2014 1.02% · 4 Dec 2014 1.12% · 8 Dec 2014 1.22% · 10 Dec 2014 1.42% · 12 Dec 2014 1.51% · 4 Mar 2015 1.60% · 17 Sep 2015 1.57% · 18 Sep 2015 1.43% · 30 Sep 2015 1.15% · 2 Oct 2015 1.08% · 13 Oct 2015 0.95% · 17 Nov 2015 0.89% · 27 Nov 2015 0.78% · 15 Jan 2016 0.68% · 17 Jan 2017 0.57% · 7 Feb 2017 0.49%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Entain PLC
closed 2 Feb 20163 disclosures · peak 1.27% · first 27 Jan 2016 · last 2 Feb 2016
27 Jan 2016 1.10% · 28 Jan 2016 1.27% · 2 Feb 2016 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
HELICAL PLC
closed 20 Jan 20162 disclosures · peak 0.50% · first 30 Oct 2015 · last 20 Jan 2016
30 Oct 2015 0.50% · 20 Jan 2016 0.47%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Lonmin PLC
closed 11 Dec 20152 disclosures · peak 0.57% · first 20 Nov 2015 · last 11 Dec 2015
20 Nov 2015 0.57% · 11 Dec 2015 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
FASTJET PLC
closed 22 Apr 20152 disclosures · peak 0.65% · first 7 Apr 2015 · last 22 Apr 2015
7 Apr 2015 0.65% · 22 Apr 2015 0.12%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
CARACAL ENERGY INC
closed 15 May 20142 disclosures · peak 0.56% · first 6 May 2014 · last 15 May 2014
6 May 2014 0.56% · 15 May 2014 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
KIER GROUP PLC
closed 9 Jul 20132 disclosures · peak 0.52% · first 21 May 2013 · last 9 Jul 2013
21 May 2013 0.52% · 9 Jul 2013 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Sportingbet PLC
closed 3 Dec 20123 disclosures · peak 0.64% · first 1 Nov 2012 · last 3 Dec 2012
1 Nov 2012 0.64% · 28 Nov 2012 0.57% · 3 Dec 2012 0.47%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Frequently asked questions
- Which UK companies did Tetragon Partners UK LLP short?
- The FCA's named register recorded Tetragon Partners UK LLP against 18 UK companies between 2012 and 2026, across 378 disclosures. No position was still open when the register closed on 10 Jul 2026.
- Is this list current?
- No. It is a frozen archive. The FCA stopped publishing position-holder names on 13 July 2026 and now publishes one anonymous aggregate per company per day, so no new named UK disclosure exists after 10 Jul 2026. Today's UK figures are on each company's own page.
- Was this the whole of Tetragon Partners UK LLP's UK short book?
- No. Only net short positions of 0.5% or more of a company's issued share capital were published with the holder's name. Smaller positions were reported to the FCA privately and never appeared in the register, so the archive is a floor, not a full book.
Source: the Financial Conduct Authority's daily short positions file, captured on 10 Jul 2026 from fca.org.uk and archived unchanged. Figures are as the FCA published them; this site is not affiliated with the FCA. Nothing here is investment advice.